gstreamer/subprojects/gstreamer-vaapi/gst-libs/gst/vaapi/gstvaapiutils_vpx.c

119 lines
3.1 KiB
C

/*
* gstvaapiutils_vpx.c - vpx related utilities
*
* Copyright (C) 2020 Intel Corporation
* Author: He Junyan <junyan.he@intel.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
#include "gstvaapiutils_vpx.h"
#include "gstvaapisurface.h"
struct map
{
guint value;
const gchar *name;
};
/* Profile string map */
static const struct map gst_vaapi_vp9_profile_map[] = {
/* *INDENT-OFF* */
{ GST_VAAPI_PROFILE_VP9_0, "0" },
{ GST_VAAPI_PROFILE_VP9_1, "1" },
{ GST_VAAPI_PROFILE_VP9_2, "2" },
{ GST_VAAPI_PROFILE_VP9_3, "3" },
{ 0, NULL }
/* *INDENT-ON* */
};
/* Lookup name in map */
static const struct map *
map_lookup_name (const struct map *m, const gchar * name)
{
g_return_val_if_fail (m != NULL, NULL);
if (!name)
return NULL;
for (; m->name != NULL; m++) {
if (strcmp (m->name, name) == 0)
return m;
}
return NULL;
}
/* Lookup value in map */
static const struct map *
map_lookup_value (const struct map *m, guint value)
{
g_return_val_if_fail (m != NULL, NULL);
for (; m->name != NULL; m++) {
if (m->value == value)
return m;
}
return NULL;
}
/** Returns GstVaapiProfile from a string representation */
GstVaapiProfile
gst_vaapi_utils_vp9_get_profile_from_string (const gchar * str)
{
const struct map *const m = map_lookup_name (gst_vaapi_vp9_profile_map, str);
return m ? (GstVaapiProfile) m->value : GST_VAAPI_PROFILE_UNKNOWN;
}
/** Returns a string representation for the supplied VP9 profile */
const gchar *
gst_vaapi_utils_vp9_get_profile_string (GstVaapiProfile profile)
{
const struct map *const m =
map_lookup_value (gst_vaapi_vp9_profile_map, profile);
return m ? m->name : NULL;
}
/** Returns VP9 chroma_format_idc value from GstVaapiChromaType */
guint
gst_vaapi_utils_vp9_get_chroma_format_idc (guint chroma_type)
{
guint chroma_format_idc;
switch (chroma_type) {
case GST_VAAPI_CHROMA_TYPE_YUV400:
chroma_format_idc = 0;
break;
case GST_VAAPI_CHROMA_TYPE_YUV420:
case GST_VAAPI_CHROMA_TYPE_YUV420_10BPP:
chroma_format_idc = 1;
break;
case GST_VAAPI_CHROMA_TYPE_YUV422:
case GST_VAAPI_CHROMA_TYPE_YUV422_10BPP:
chroma_format_idc = 2;
break;
case GST_VAAPI_CHROMA_TYPE_YUV444:
case GST_VAAPI_CHROMA_TYPE_YUV444_10BPP:
chroma_format_idc = 3;
break;
default:
GST_DEBUG ("unsupported GstVaapiChromaType value");
chroma_format_idc = 1;
break;
}
return chroma_format_idc;
}